Improved implement for grooving the mouths of glass bottles



E. BENNETT. Implement for Growing the Mouths of Glass Bottles. No. 55,988, I Patented luly fi, 1866.'

m s I fiz-venz'orx UNITED STATES PATENT ?-.0:FFI.C-EO

IMPROVED IMPLEMENT FOR GROOVING THE MOUTHS 0F GLASS BOTTLES.

Specification forming part of Letters Patent N 0. 55,988, dated July 3, 1866.

To all whom it may concern:

Be it known that I, EDWIN BENNETT, of the city of Philadelphia, in the State of Pennsylvania, have invented a new and useful Improvement in the Implement for Grooving the Mouths of Glass Jars and Bottles; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference be ing had to the accompanying drawings, making a part of this specification, in which Figure 1 is a central longitudinal section of the well-known glass blowers bottle-clamp having my said improvement applied thereto, and Fig. 2 a transverse section of the same on the dotted line at y of Fig. 1.

Like letters and numbers of reference indicate the same parts when in both figures.

. The object of my improvement is to make the tool produce a groove having a corrugated or roughened bottom around in the inside of the neck or mouth of a glass jar or bottle while in the plastic state, for the purpose of holding and preventing the packingafterward applied in the said groove from being moved around therein by the operation of screwing the stopper within it in closing the mouth of the said jar or bottle air-tight, and has a special relation to the construction of the fruitpreserving glass jars for which a patent was granted to me dated the 6th day of February, 1866.

My invention consists in the application to a glass-blowers bottle-clamp, constructed substantially as hereinafter described, of two small rotary disks or wheels having their peripheries cut into sharp-edged teeth, and operatcd by levers or their equivalent, so that in closing and moving the clamp around the neck of the jar or bottle while in a plastic state the said toothed wheels will be caused to produce the required corrugated or roughened groove therein.

In the drawings, A B is the clamp, O C the toothed wheels, and!) D the levers upon which the wheels rotate.

The clamp A Bis made of iron and steel, and consists of a central stem, a, provided with a head or mouth piece, a and two springclamps, b b, guided by a transverse stem, b

and connected together, so that when the mouth and neck of the plastic jar or bottle is slipped over the head a, and the spring-clamps b b then pressed toward each other in the operators hand, the clamping ends of the same will be pressed in contact with the outside of the said neck and keepit securely upon the said head. (See Fig. 1, the faint lines representing the jar or bottlev and the dotted lines the clamps in contact therewith.)

The toothed wheels 0 O are secured upon their respective levers D D, so as to be rotated freely when moved around in contact with theinside of the neck of the plastic jar or bottle.

The levers D D have their fulcra in mortisesin the transverse stem b and their power ends kept in contact with the respective inner sides of the clamp-springs b I) by means of two springs, d? 61 The head a is hollow, and hastwo side openings, 3 3, which allow the edges of the wheels 0 O to be freely thrust out sufficiently beyond two opposite sides of the head a to make the required corrugated or roughened groove in the neck or mouth of the jar or bottle.

Operation The mouth of the glass vessel, while in its plastic condition, is slipped over the head a and the spring-clamps b b then immediately pressed toward each other in one of the handsof the operator, while, with his other hand controlling the vessel, the wheels 0 O are easily thrust out, and the corrugated or roughened groove required is readily and quickly formed by rotating the clamp and the vessel in opposite directions. Then, by releasing his grasping pressure on the spring-clamps b b, the wheels 0 O are withdrawn from the groove which has been formed to their normal positions shown in the drawings, and the glass vessel finally removed from the head a.

The diameter of the head a ismade a little less at 4t than at 5, so as to make the mouth of the vessel a little less in diameter below the groove than it is above it, (see Fig. 1,) for the purpose of better resisting the downward pressure in introducing the stopper.

This is a very easily operated and effective near the head, the said parts being arranged invention for producing the required eorruclamp of the toothed wheels 0 O, the same gated or roughened grooves in glass jars or being arranged and operated substantially as bottles. and for the pgrpose described.

What I claim as my invention, and desire to EDWIN BENNETT.

secure by Letters Patent, is confined to the fol- Witnesses:

lowing, viz: BENJ. MORISON,, 4

The application to a glass blowers bottle- WM. H. MORIsON. 

